Wick adjusting device



Sept. 28, 1937. v w. B. ENG-H 'WICK ADJUSTING DEVICE Filed Dec. 11, 1935 EEEEE o o 0 men 1. Q0

9 z I 2 I. III: a i 0 0 a mm a 7 6 O U 1 4 2 5 1 INVENTOR, WALTER B. ENC-3H,

ATTORNEY.

Patented Sept. 28, 1937 UNITED STATES PATENT OFFICE WICK ADJUSTING DEVICE Application December 11, 1935, Serial No. 53,971 In Great Britain April 30, 1935 6 Claims.

The invention relates to Wick raisers for lamp stoves in which an annular wick is employed, and comprehends a wick raiser of a type wherein the principal parts are situated within the reservoir of a lamp stove, instead of being disposed in the burner thereof.

The invention will best be understood if reference be had to the accompanying drawing, in which- Figure 1 is a View, partly in section, of a lamp stove embodying said wick raiser;

Figure 2 is a sectional view taken on the line 22 of Figure 1, and

Figure 3 shows a detail of said wick raiser.

Referring tothe drawing, I is a reservoir, and 2 is a burner having an inner wick tube 3 and a short outer wick tube 4 which leaves the outer surface of the wick 5 free to be engaged by the wick raiser.

The wick-adjusting means comprises a pivoted and forked arm 6 engaging the wick 5 at its movable end and linked at an intermediate point 1 to a manually-operated rod 8 for effecting the raising and the lowering operations.

In carrying the invention into effect and in the preferred manner, the wick-adjusting mechanism comprises a forked arm 6, the forked portions 6a, 6b of which extend to each side of the wick 5 and engage at diametrically-opposed 30 points 9, the lower ends of arms l6 below described.

The end of the arm 6, remote from the forked portions 6a, 6b, is pivotally mounted within the casing of the lamp stove at I U, and. at a point between the pivot at Ill and the forked portions 6a, 6b, said arm 6 is pivotally connected to the lower or inner end of the rod 8 which projects through the wall of the reservoir I. The outer end of the rod 8 has a screw-thread II which engages an internally screw-threaded sleeve I4 which is provided with a flange l3 at its lower end that engages the inner surface of the reser- Voir I, and around said sleeve I4 and secured thereto is a thumb piece l5 which engages the outer surface of said reservoir l. The flange l3 and the thumb piece I 5, being thus disposed, prevent longitudinal movements of the rod 8, except when said thumb piece is rotated to effectuate adjustments of the arm 6 and of the wick 5.

The rod 8 is slotted at its lower end to receive the forked arm 6, and said arm 6 has a slot 60 through which a pin 6d carried by said rod, extends.

The forked ends of the arm 6, preferably engage the wick through the medium of short arms It pivotally connected at 9 with said forked ends, which arms are pivotally mounted on the sides of the wick at H, so that the wick may be raised or lowered without being tilted or distorted.

The burner 2, being of a conventional type, re- 5 quires no description other than that hereinbefore given.

Below the reservoir I is a baffle l8 which prevents excessive flow of air into and through the inner wick tube.

Having thus described my invention, what I claim is:

1. In an oil burner, the combination of a reservoir for liquid fuel, a tubular wick mounted in said reservoir for vertical movement and having its outer surface exposed to the interior of said reservoir, fiat and vertically extending arms resting against the outer surface of the wick and pivotally connected at their upper ends with the wick, a forked arm having a body portion and s spaced ends displaced horizontally from the axis of said forked arm, said spaced ends being pivotally connected with the lower ends of said flat arms, the end of said forked arm remote from said spaced ends having pivotal connection in said reservoir with a wall thereof, a vertically disposed operating rod having a slotted lower end spanning and pivotally connected with the body portion of said forked arm and having an externally threaded upper end portion extending through the top wall of said reservoir, and a thumb nut on the threaded portion of said operating rod and having a groove engaging the top wall of said reservoir and restraining said nut from axial movement relative to said top wall.

2. In an oil burner, the combination of a reservoir for liquid fuel, a tubular wick mounted in said reservoir for vertical movement and having its outer surface exposed to the interior of said reservoir, flat and vertically extending arms resting against the outer surface of the wick and pivotally connected at their upper ends with the wick, a forked arm having a body portion and spaced ends displaced horizontally from the axis of said forked arm, said spaced ends being pivotally connected with the lower ends of said flat arms, the end of said forked arm remote from saidspaced ends having pivotal connection in said reservoir with a wall thereof, a vertically disposed operating rod having a slotted lower end spanning and pivotally connected with the body portion of said forked arm and having an externally threaded upper end portion extending through the top wall of said reservoir, and a thumb nut on the threaded portion of said oper- 55 ating rod and having a groove engaging the top wall of said reservoir and restraining said nut from axial movement relative to said top wall, the body portion of said forked arm having a longitudinally extending slot containing the pivotal connection of said operating rod.

3. In an oil burner, the combination of a reservoir for liquid fuel, a tubular wick mounted in said reservoir for vertical movement and having its outer surface exposed to the interior of said reservoir, flat and vertically extending arms resting against the outer surface of the wick and pivotally connected at their upper ends with the wick,a forked arm having a body portion and spaced ends displaced horizontally from the axis of said forked arm, said spaced ends being pivotally connected with the lower ends of said fiat arms, the end of said forked arm remote from said spaced ends having pivotal connection in said reservoir with a wall thereof, a vertically disposed operating rod having a slotted lower end spanning and pivotally connected with the body portion of said forked arm and having an externally threaded upper end portion extending through the top wall of said reservoir, and a thumb nut on the threaded portion of said operating rod and having a groove engaging the top wall of said reservoir and restraining said nut from axial movement relative to said top wall, said nut comprising inner and outer tubular members telescoped and secured together and having laterally extending portions for engagement with the upper and lower surfaces of the top wall of said reservoir.

4. In an oil burner, the combination of a reservoir for liquid fuel, a tubular wick mounted in said reservoir for vertical movement and having its outer surface exposed to the interior of said reservoir, flat and vertically extending arms resting against the outer surface of the wick and pivotally connected at their upper ends with the wick, a forked arm having a body portion and spaced ends displaced horizontally from the axis of said forked arm, said spaced ends being pivotally connected with the lower ends of said fiat arms, the end of said forked arm remote from said spaced ends having pivotal connection in said reservoir with a wall thereof, a vertically disposed operating rod having a slotted lower end spanning and pivotally connected with the body portion, of said forked arm and having an externally threaded upper end portion extending through the top wall of said reservoir, and a thumb nut on the threaded portion of said operating rod and having a groove engaging the top wall of said reservoir and restraining said nut from axial movement relative to said top wall, the body portion of said forked arm having a longitudinally extending slot containing the pivotal connection of said operating rod, said nut comprising a thumb piece outside of said reservoir and a flange member inside of said reservoir and secured to said thumb piece, said flange member and said thumb piece forming between them the groove in said thumb nut.

5. In an oil burner, the combination of a reservoir for liquid fuel, a tubular wick mounted in said reservoir for vertical movement, flat and vertically extending arms spaced from each other and pivotally connected at their upper ends with the wick, a forked arm having a body portion and spaced ends displaced horizontally and pivotally connected with the lower ends of said flat arms, the end of said forked arm remote from said spaced ends having pivotal connection in said reservoir with a wall thereof, a vertically disposed operating rod pivotally connected with the body portion of said forked arm and having an externally threaded upper end portion extending through the top wall of said reservoir, and a thumb nut on the threaded portion of said operating rod and having a groove engaging the top wall of said reservoir and restraining said nut from axial movement relative to said top wall.

6. In an oil burner, the combination of a reservoir for liquid fuel, a tubular wick mounted in said reservoir for vertical movement, flat and vertically extending arms spaced from each other and pivotally connected at their upper ends with the wick, a forked arm having a body portion and spaced ends displaced horizontally and pivotally connected with the lower ends of said flat arms, the end of said forked arm remote from said spaced ends having pivotal connection in said reservoir with a wall thereof, a vertically disposed operating rod pivotally connected with the body portion of said forked arm and extending upwardly therefrom, and operating devices carried by said reservoir and cooperating with said operating rod to move said operating rod vertically by operation of said operating devices.

WALTER B. ENG-H. 

